SE547654C2 - A cylindrical secondary cell lid comprising a petal vent feature - Google Patents

A cylindrical secondary cell lid comprising a petal vent feature

Info

Publication number
SE547654C2
SE547654C2 SE2350999A SE2350999A SE547654C2 SE 547654 C2 SE547654 C2 SE 547654C2 SE 2350999 A SE2350999 A SE 2350999A SE 2350999 A SE2350999 A SE 2350999A SE 547654 C2 SE547654 C2 SE 547654C2
Authority
SE
Sweden
Prior art keywords
secondary cell
cylindrical secondary
cell lid
center portion
groove pattern
Prior art date
Application number
SE2350999A
Other versions
SE2350999A1 (en
Inventor
Saurabh Bidari
Original Assignee
Northvolt Ab
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Northvolt Ab filed Critical Northvolt Ab
Priority to SE2350999A priority Critical patent/SE547654C2/en
Priority to PCT/EP2024/057370 priority patent/WO2025045395A1/en
Publication of SE2350999A1 publication Critical patent/SE2350999A1/en
Publication of SE547654C2 publication Critical patent/SE547654C2/en

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/30—Arrangements for facilitating escape of gases
    • H01M50/342—Non-re-sealable arrangements
    • H01M50/3425—Non-re-sealable arrangements in the form of rupturable membranes or weakened parts, e.g. pierced with the aid of a sharp member
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/147—Lids or covers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/147—Lids or covers
    • H01M50/148—Lids or covers characterised by their shape
    • H01M50/152—Lids or covers characterised by their shape for cells having curved cross-section, e.g. round or elliptic
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/147—Lids or covers
    • H01M50/166—Lids or covers characterised by the methods of assembling casings with lids
    • H01M50/171—Lids or covers characterised by the methods of assembling casings with lids using adhesives or sealing agents
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/572—Means for preventing undesired use or discharge
    • H01M50/574—Devices or arrangements for the interruption of current
    • H01M50/578—Devices or arrangements for the interruption of current in response to pressure
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2200/00—Safety devices for primary or secondary batteries
    • H01M2200/20—Pressure-sensitive devices
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2220/00—Batteries for particular applications
    • H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Sealing Battery Cases Or Jackets (AREA)
  • Gas Exhaust Devices For Batteries (AREA)
  • Battery Mounting, Suspending (AREA)

Abstract

This disclosure presents a cylindrical secondary cell lid (1) for a cylindrical secondary cell (100), the cylindrical secondary cell lid (1) comprising a groove pattern (10) that is configured to provide a vent opening in the cylindrical secondary cell lid (1) if a pressure to which the cylindrical secondary cell lid (1) is subjected reaches a threshold value. The groove pattern (10) defines a center portion (20), a first off-center portion (31), a second off-center portion (32), and a third off-center portion (33), wherein the off-center portions (31, 32, 33) extend from the center portion (20) and are respectively formed by two radial groove pattern sections (11a, 11b, 12a, 12b, 13a, 13b) and one circumferential groove pattern section (lie, 12c, 13c) that connects the two radial groove pattern sections (11a, 11b, 12a, 12b, 13a, 13b).
SE2350999A 2023-08-28 2023-08-28 A cylindrical secondary cell lid comprising a petal vent feature SE547654C2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
SE2350999A SE547654C2 (en) 2023-08-28 2023-08-28 A cylindrical secondary cell lid comprising a petal vent feature
PCT/EP2024/057370 WO2025045395A1 (en) 2023-08-28 2024-03-20 A cylindrical secondary cell lid comprising a petal vent feature

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE2350999A SE547654C2 (en) 2023-08-28 2023-08-28 A cylindrical secondary cell lid comprising a petal vent feature

Publications (2)

Publication Number Publication Date
SE2350999A1 SE2350999A1 (en) 2025-03-01
SE547654C2 true SE547654C2 (en) 2025-11-04

Family

ID=90545006

Family Applications (1)

Application Number Title Priority Date Filing Date
SE2350999A SE547654C2 (en) 2023-08-28 2023-08-28 A cylindrical secondary cell lid comprising a petal vent feature

Country Status (2)

Country Link
SE (1) SE547654C2 (en)
WO (1) WO2025045395A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE546984C2 (en) * 2024-03-20 2025-03-25 Northvolt Ab Lid closure for a secondary cell

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090274949A1 (en) * 2008-05-02 2009-11-05 Sony Corporation Nonaqueous electrolyte battery
EP2362465A2 (en) * 2010-02-18 2011-08-31 Samsung SDI Co., Ltd Rechargeable battery
CN104009196A (en) * 2013-02-26 2014-08-27 罗伯特·博世有限公司 Equipment for protecting drain valve, support element, storage battery electric core, and storage battery
US20170309881A1 (en) * 2016-04-25 2017-10-26 Samsung Sdi Co., Ltd. Secondary battery
EP4068443A1 (en) * 2019-11-29 2022-10-05 SANYO Electric Co., Ltd. Sealed battery

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090274949A1 (en) * 2008-05-02 2009-11-05 Sony Corporation Nonaqueous electrolyte battery
EP2362465A2 (en) * 2010-02-18 2011-08-31 Samsung SDI Co., Ltd Rechargeable battery
CN104009196A (en) * 2013-02-26 2014-08-27 罗伯特·博世有限公司 Equipment for protecting drain valve, support element, storage battery electric core, and storage battery
US20170309881A1 (en) * 2016-04-25 2017-10-26 Samsung Sdi Co., Ltd. Secondary battery
EP4068443A1 (en) * 2019-11-29 2022-10-05 SANYO Electric Co., Ltd. Sealed battery

Also Published As

Publication number Publication date
WO2025045395A1 (en) 2025-03-06
SE2350999A1 (en) 2025-03-01

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